Top Senior .NET Developer Jobs in Austin, TX

Design, develop, test, maintain, and document web applications for Life Sciences manufacturers. The role involves full-stack development with .NET, C#, databases, APIs, progressive web applications, cloud-native technologies, automated testing, CI/CD, and containerization. The developer collaborates with product engineering, marketing, and other teams to understand client needs, deliver features, improve existing products, and support next-generation software solutions.

Develop web applications and backend services using Microsoft technologies, Angular, C#, .NET, REST APIs, and SQL Server. Design maintainable architectures, write automated tests, participate in code reviews and Agile delivery, resolve production issues, document systems, clarify requirements, and mentor junior developers. The role also involves enforcing development standards, managing project work, and supporting Azure and DevOps-based solutions.

Leads architecture and development of complex backend services for a commercial health plan platform. Designs .NET Core and Azure systems, develops claims, eligibility, and benefits functionality, manages healthcare data integrations, and owns cloud infrastructure and CI/CD architecture. Provides technical leadership through code reviews, testing standards, mentoring, and architecture decisions while ensuring performance, reliability, security, and regulatory compliance.

Develop and optimize Microsoft .NET applications, legacy systems, and microservices with a focus on performance, scalability, reliability, and observability. Responsibilities include code reviews, performance testing, CI/CD integration, architecture and sprint delivery, legacy code and SQL tuning, cloud application deployment on Azure, automated testing, and resolving customer issues. The developer collaborates with architects, QA, technical support, and cross-functional teams using SAFe Agile practices.

Design, develop, deploy, and support enterprise integration solutions using C#, .NET, Azure, APIs, microservices, middleware, and Azure Service Bus. Integrate SAP, Dynamics 365 CRM, IVR systems, databases, payment gateways, and traffic management platforms. Build secure, scalable, high-volume data exchanges, troubleshoot production issues, document technical solutions, and support implementation and post-go-live activities, including scheduled onsite work in Middletown, Pennsylvania.

Design, develop, test, and support scalable full-stack applications and cloud-native microservices using .NET, Angular, AWS, SQL, and NoSQL technologies. Build APIs, data integrations, ETL pipelines, and CI/CD solutions while improving system performance, reliability, and scalability. Collaborate with product, architecture, and engineering teams, participate in design and code reviews, troubleshoot applications, document technical solutions, and apply modern DevOps and AI-assisted development practices.

Senior .NET Software Engineer responsible for end-to-end software development using Microsoft technologies. Requires extensive experience in SDLC, design principles, technical documentation, web application development with .NET, Agile/SCRUM, Entity Framework, database design, and version control. Familiarity with project tools JIRA, TEMPO, Bitbucket, and Confluence preferred.

Senior .NET Web App Developer responsible for designing and building .NET web applications, implementing Oracle PL/SQL solutions, using Entity Framework and Blazor, applying design principles, producing technical documentation, performing performance tuning, and collaborating in Scrum/Agile teams with Bitbucket, JIRA, Tempo, and Confluence.

Develop and maintain web-based applications using .NET/C#, JavaScript, HTML/CSS, SQL and Oracle/SQL Server. Perform root cause analysis, collaborate with teams for requirements, follow Agile SDLC, present change demonstrations, and use Azure DevOps/Jira for lifecycle management. Implement and maintain Blazor components.

Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.

Leads the design, development, and implementation of full-stack applications using C#, .NET, Angular, Azure, and SQL Server. Collaborates with cross-functional teams, ensures application security, performance, and scalability, applies Git-based version control practices, mentors developers, and stays current with emerging technologies.

Build and maintain scalable, cloud-native APIs and high-value core system components using .NET and related technologies. Lead software architecture and testing discussions, enhance core offerings, collaborate cross-functionally, and ensure quality through code reviews, unit testing, functional testing, telemetry, and performance tuning. Mentor teammates and contribute to continuous technical and process improvement.

Design, build, and maintain scalable backend services and microservices in C#/.NET. Develop secure REST APIs, optimize SQL and NoSQL databases, enforce code quality, write tests, and collaborate on CI/CD and AWS deployments. Mentor mid/junior engineers and support observability, containerization, and DevOps practices.

Lead development of secure, scalable digital banking software across front-end and backend systems. Design Angular or React applications, build APIs, optimize SQL performance, integrate third-party platforms, improve code quality, implement testing strategies, and mentor engineers. Collaborate with cross-functional teams in an Agile environment while supporting cloud-native practices, regulatory compliance, and continuous product improvement.

Owns the design, development, testing, deployment, and maintenance of production software. Builds C#/.NET backend services, Angular web applications, and .NET MAUI mobile apps; optimizes SQL Server databases; resolves production issues; improves reliability, security, performance, and observability; writes tests and documentation; participates in code reviews; and translates ambiguous business needs into maintainable technical solutions.

Build scalable backend-heavy services and applications using C# and .NET, while contributing to Angular and TypeScript UI development. Design and develop REST APIs and microservices, work with relational databases, implement automated testing and CI/CD, and ensure system security, scalability, and performance. Preferred work includes event-driven architectures, messaging systems, NoSQL databases, caching, search technologies, and mentoring engineers or leading technical initiatives.

Develop and maintain software applications using ASP.NET, C#, and Microsoft .NET technologies. Apply object-oriented programming and work with SQL Server, JavaScript, AJAX, XHTML, Visual Studio, and Team Foundation Server. The role requires software development experience and may support safety and graphics business applications, with motor vehicle industry experience preferred.

Develop and support ASP.NET applications, using relational databases and enterprise application technologies. The role requires strong SQL Server skills, logical analysis, attention to detail, and the ability to understand business processes. Preferred experience includes MVC, WCF, dependency injection, ORM frameworks such as NHibernate or Entity Framework, and unit testing with NUnit and Moq.

Develop and maintain ASP.NET applications for enterprise clients. Responsibilities require strong relational database and SQL skills, experience with MVC and WCF, familiarity with IoC, dependency injection, and ORM technologies, and unit testing using NUnit and Moq. The role also involves analyzing business processes, prioritizing critical issues, drawing accurate conclusions, and delivering detail-oriented, logically sound solutions.

Develop software applications using ASP.NET, C#, and Microsoft .NET technologies. The role requires collaborating with development tools and platforms including Visual Studio and Team Foundation Server, with preferred experience in SQL Server, XHTML, JavaScript, and AJAX.

Seeking a Senior .Net Developer with at least 5 years experience in Microsoft technologies for an urgent role with a top insurance company.

The Senior .NET Software Engineer will drive development of .NET software products, focusing on back-end engineering, code reviews, and collaborating with cross-functional teams.

The Senior .Net Developer will enhance SDG's C#/.NET Core codebase, design high-load services, and optimize MS SQL queries, benefiting from a remote work environment and attractive benefits.

Design, develop, test, deploy, and optimize high-volume .NET web applications using WCF, ASP/MVC/WebForms, Entity Framework and MS SQL. Participate in design and architecture reviews, SDLC and project lifecycle activities, troubleshoot IIS/ASP.NET issues, and collaborate with stakeholders in a global delivery environment, preferably with financial services experience.

Lead design and delivery of scalable, reliable software using C#/.NET, SQL Server, React, and Azure. Own complex initiatives from design through operations, mentor engineers, improve CI/CD, observability, and apply DDD/TDD/VSA practices. Use modern APIs, microservices or modular monoliths, and AI-assisted tooling to improve delivery.